Backup Battery; Location Of Battery Backup Switch - GE MDS 4790 Series Installation & Operation Manual

CAUTION
POSSIBLE
EQUIPMENT
DAMAGE
MDS 05-3438A01, Rev. F
RSPSupply - 1-888-532-2706 - www.RSPSupply.com
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Figure 10. Typical Rack-Mounted External DC Power Supply

4.4 Backup Battery

A single backup battery is normally installed in AC-powered master sta-
tions. To prevent battery discharge during shipment, the radio's internal
Battery Backup switch is set to OFF at the factory. Set this switch to ON
during installation to activate the radio's battery-backup feature.

Location of Battery Backup Switch

The control switch is located behind the front panel
BATTERY BACKUP
to enable and disable the internal back-up battery. Access the switch by
removing the front panel (see
To remove the front panel, grasp it firmly along its bottom edge and pull
it away from the radio chassis (see
panel aside, using care not to damage the interconnecting cable.
In most cases, the radio begins transmitting as soon as power
is applied. Be sure that a proper load is attached to the radio's
RF output connector before applying battery or mains power.
If AC power is disconnected, or the rear panel AC power
switches are set to OFF, the radio continues to operate on
battery power until the battery discharges (approximately
1 hour). When shipping or storing the radio, always set the
BATTERY BACKUP
MDS 4790/9790 Series I/O Guide
Invisible place holder
(with dual supplies)
Figure 11 on Page 16).
Figure 8 on Page
switch to to prevent discharge.
OFF
13). Set the front
15